Names that can use Lonni as a nickname???

My wife insists that any name we choose has a nickname to go along with it. We are looking for something a little bit different and my wife is a school teacher so any popular names are going to be shot down because she will inevitably know a child in her school that has the smae name and we are trying to stay away form that.

I like the nickname Lonni (Lonnee, Lonnie, etc.) but I am having trouble coming up with a full name that can be used with this. I have a friend whose wife's name is Avalon who goes by Lonnie so I want to exclude that as we are looking for something unique to our future baby girl.